Home / 5,007.29-7,506.86-2,087.78

Finding the Fourth Proportional to 5,007.29, 7,506.86 and 2,087.78

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Solution

The fourth proportional to 5,007.29, 7,506.86 and 2,087.78 is: 3,129.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,007.29 : 7,506.86 = 2,087.78 : x
  2. Step 2: Convert to fraction form
    5,007.29/7,506.86 = 2,087.78/x
  3. Step 3: Cross multiply
    5,007.29x = 7,506.86 × 2,087.78
  4. Step 4: Simplify right side
    5,007.29x = 15,672,624.20
  5. Step 5: Solve for x
    x = 15,672,624.20/5,007.29
  6. Step 6: Final answer
    x = 3,129.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.